When speed kills old software…

Mo'Slo has been giving old programs new life since 1990. Current Mo'Slo products let you run speed-sensitive DOS and Windows programs on state-of-the-art systems.

For Windows,Mo'Slo 4BIZ slows both DOS and Windows programs without discernable effect on Windows or other programs. Mo'Slo 4BIZ has three Win32 slowdown methods, two DOS slowdown methods, an easy-to-use Windows interface… [more]

Updates to Mo'Slo software are described in the Version History section. Updates to the major version you purchase are free. To obtain an update, simply download again using the download instructions you receive when you purchase.